baber/WOPTO huggingface dataset:
Patent GB-744722-A (GB)
Title: Stabilisation of liquid sulfur trioxide and oleum
IPC: C01B17/90
Filed: 1953-11-20
Abstract: Liquid sulphur trioxide or oleum of SO3 strength (e.g. 80 per cent or more) such that SO3 polymers tend to form are stabilized by adding a polymeric methyl siloxane.  Suitable compounds are of general formula R1[R211 SiO]n SiR3111 or [R1 R11 SiO]n where R1, R11, R111 are -CH3 or -OCH3 groups or may be H for those silicon valencies not satisfied by -CH3 or -OCH3, particularly [CH3 R SiO]n where R is -CH3, -OCH3, or H and n is 3-900, or CH3 [(CH3)2 SiO]n Si(CH)3 where n is 1-900 e.g. hexamethyldisiloxane or dodecamethyl pentasiloxane.  The methyl siloxane polymer may be liquid or grease-like of viscosity 0.65 - 12500 c.s. at 25 DEG C. or may be mixtures of siloxane polymers and should contain 1 to 1.6 methyl groups per silicon atom in the molecule.  The liquid SO3 may be prepared by distilling 30 per cent oleum and condensing the gas at 20-30 DEG C., or by compressing the gas from a catalytic SO2-oxidation to 160-170 lbs./sq. inch and condensing SO3 by cooling to 20-25 DEG C.  The siloxane polymer should be added to anhydrous SO3 or to oleum containing at least 99.4 per cent free SO3 and may be mixed by agitation. Alternatively SO3 may be condensed in a vessel containing the siloxane polymer.
Patent GB-215686-A (GB)
Title: Improvements relating to school desks and seats
IPC: A47B39/08
Filed: 1923-12-27
Abstract: 215,686. Bennet, G. Dec. 27, 1923. School desks. - The supports 4, 6 are in the form of wooden rods, the upper ends of which are accommodated in metal sockets 5a, 7a, 8<a> in the desk head, the seat frame and the back rest, and the lower ends of which have a mortise-andtenon connection with the wood base members 1 and are supported by sleeves 2 on a metal basereinforcing member 3.
Patent GB-429265-A (GB)
Title: Electric table or like lamp
IPC: F21S6/00
Filed: 1933-11-20
Abstract: 429,265. Table or wall lamps. FREY, P., 33, Scharrenstrasse, Charlottenburg, Berlin. Nov. 20,1933, No. 32321. Convention date, Nov. 24, 1932. [Class 75 (ii)] In an electric table lamp, a hollow lightpermeable shade 1, e.g. of bell shape carries the socket 3 for the incandescent lamp 2 and has an aperture through which the incandescent lamp 2 can be inserted without disconnection of socket and shade and which during use is covered by the table surface. The lamp may alternatively be secured, e.g. by loops, to a wall, the surface of which covers the shade aperture. Separate or integral feet 6, a switch 7, and apertures 5 which may be screened by sliding windows or curtains, may be provided. The shade 1 and socket 3 may be made integrally of artificial resins. Plastic materials of different colours may be used for the shade, and pictorial or written indications may be formed by varying the thickness of material. The incandescent lamp may be arranged horizontally, or a plurality may be used. Reference has been directed by the Comptroller to Specifications 23605/93, 7794/96, [both in Class 75], 4425/10, 183,909, and 233,992, [all in Class 75 (ii)].
Patent GB-444682-A (GB)
Title: Improvements in optical observation apparatus for armoured vehicles
IPC: F41H5/26
Filed: 1935-11-21
Abstract: 444,682. Look - out apparatus for vehicles. OESTERR - UNG. OPTISCHE ANSTALT C. P. GOERZ GES., 5, Sonnleithnergasse, and CATASTA, R., 12, Schwarzenbergplatz, both in Vienna. Nov. 21, 1935, No. 32346. [Class 103 (ii)] [See also Group XX] In a mounting for an optical lookout device, such as a telescope, on an armoured vehicle, the objective end is supported in the wall of the vehicle by a ball or universal joint orajoint rotatable in only one plane, and the eyepiece end is flexibly suspended or is supported on the body of the observer. As shown, the wall 1 of the vehicle is formed with a bearing 1a for a ball joint 2 having apertures through which pass the objectives 3 of a binocular telescope 4. The eyepieces 5 pass through apertures in a member 4a adjustably secured to a member 4b supported on the shoulders of the observer. The eyepiece mounting may be provided with a forehead rest 4c, and may be resiliently supported by a spring 7 secured to the wall 1.
Patent GB-853245-A (GB)
Title: Electric motor
IPC: H02K5/128
Filed: 1957-10-16
Abstract: 853,245. Centrifugal pumps. ALLIS-CHALMERS MANUFACTURING CO. Oct. 16, 1957 [Oct. 22, 1956], No. 32379/57. Class 110(1). [Also in Group XXXV] A centrifugal pump impeller 84 is mounted on the free end of a driving motor hollow shaft 75 whose sleeve bearing 73 is flushed and lubricated by a by-passed portion of the fluid being pumped, which portion is fed from the highpressure to the low-pressure side of the pump via a conduit 86, the hollow shaft, and a bore 89 in the impeller.
Patent GB-1174630-A (GB)
Title: Improvements in and relating to Venetian Blinds
IPC: E06B9/305
Filed: 1967-07-28
Abstract: 1,174,630. Venetian blinds. LEVOLOR LORENTZEN Inc. 28 July, 1967 [29 Aug., 1966]. No. 32422/69. Divided out of 1,174,629. Heading E1J. A tilt-rod cradle 26 of stamped steel sheet for mounting in the head 20 of a Venetian blind has a base 25a, a lift cord guide 26i formed as the rounded edge of the lift cord hole 26h in the base 26a and a lug 26C perpendicular to the base 26a with a recess for supporting the tilt rod so that the lift cord 22' passes upwardly through the base of the cradle and makes a 90‹ bend at the cord guide 26i and continues horizontally through a cord hole 26p with rounded walls 26q in the lug, the hole 26p having the wall 26q extending across the top of the cord 22' and downwardly on opposite sides of the cord, on one (viz left) side to the cradle base and on the other (right) side below the level of the upper surface of wall 26i surrounding the lift cord hole 26h so as to leave a lateral opening through which the lift cord 22' can be passed sidewise for entry into and removal from the cord hole but only when the cord is depressed below the level of the cord at the cord guide 26i. A lug for supporting the rod is provided on the other side of the base 26a and provided with a similar lift cord hole for the passage of a lift cord 22 from the cradle disposed to the left of the Figure 7. The base 26a of the cradle has two notches (26g Fig. 1) into which fit two turned over tongues 20c formed in the base 20c of the head, to fix the cradle in the head. Wedge shaped cutout 26t directs the lift cord for sideways entry into the cord hole. The lug has an arm (26d) with two laterally spaced fingers (26e, 26f) which can be bent perpendicularly across the tilt rod to retain it in the lug recesses.
Patent GB-790023-A (GB)
Title: Photographic light-sensitive material with an antihalation layer
IPC: C09B11/22
Filed: 1955-11-14
Abstract: Dyes of the general formula: <FORM:0790023/IV (b)/1> wherein R1 is a hydrogen or halogen atom or an alkyl, an aralkyl, hydroxyalkyl or other substituted alkyl, a hydroxy, or an alkoxy group; R2 is H or an alkyl, carboxylic acid or nitro group; R3 is an alkyl, an aralkyl, hydroxyalkyl or other substituted alkyl, an aryl, or a substituted aryl group; R4 is an alkyl or an aralkyl, hydroxyalkyl or other substituted alkyl group; and R5 is a hydrogen or halogen atom or an alkyl group are prepared by condensing two molecular proportions of the appropriate phenol, cresol or phenolcarboxylic acid with the appropriate p-aminobenzaldehyde and oxidizing the leuco compound produced, e.g. with a nitrite.  In examples, dyes are prepared using: (1) o-chloro-p-diethylaminobenzaldehyde and o - cresotinic acid, (2) N - methyl : N - p1-ethoxyphenylaminobenzaldehyde and o - cresotinic acid, (3) p - dimethylaminobenzaldehyde and o - cresotinic acid, (4) p - (N - butyl : N-b -chlorethylamino) - benzaldehyde and salicylic acid, (5) p - diethylaminobenzaldehyde and o-cresotinic acid, and (6) N-methyl : N-carboxymethylaminobenzaldehyde and o - cresotinic acid. Dyes may also be prepared such that R3 represents a group of the formula: <FORM:0790023/IV (b)/2> In Example (7) such a dye is prepared by the condensation of o-cresotinic acid with N-ethyl-p : p1-diformyldiphenylamine and subsequent oxidation.  Similar dyes may be prepared from N - methyl - p : p1 - diformyldiphenylamine, p : p1 - diformyldiphenylamine - N - acetic acid, or p : p1 - diformyldiphenylamine - N - propionitrile, or from pyrocatechol, salicylic acid, 3-chlorosalicylic acid or o-cresol. Specifications 397,740, 399,713, 456,534, [all in Group IV], and 694,681 are referred to.
Patent GB-759051-A (GB)
Title: Improvements in or relating to diaphragm pumps for milk
Inventor: COLLINSON ERNEST
IPC: A01J5/04
Filed: 1953-11-24
Abstract: 759,051. Diaphragm pumps. COLLINSON, S. Nov. 23, 1954 [Nov. 24, 1953], No. 32503/53. Class 102(1). A diaphragm pump for use with dairy equipment comprises casing parts 20, 23 between which is placed a diaphragm 21 ; the casing part 23 carries a frame 25 with a screw 24 to clamp the parts 20, 23 together. The casing part 23 contains a spring 35 fitted with abutments 41, 42, the abutment 41 pressing against the diaphragm 21 and the abutment 42 being adjusted by the screw 36 to determine the pressure applied to the diaphragm during the delivery stroke. The interior of casing part 23 is connected to a pulsator 38 which applies cyclically the vacuum produced by a pump 39. The casing part 21 has diametrically opposite openings 26, 27 fitted with an inlet valve 31 and a lighter outlet valve 32, each having stems that project from the openings so that they can be lifted to empty the pump and pipes during dismantling for cleaning. In a modification the diaphragm operates toggle mechanism to alternately connect the casing part 23 to vacuum and atmosphere and the casing parts are clamped by a spring clip.
Patent GB-534048-A (GB)
Title: Improvements in and relating to refractory metal compositions and their production
IPC: C22C27/04
Filed: 1939-12-20
Abstract: 534,048. Alloys. MALLORY METALLURGICAL PRODUCTS, Ltd. (Mallory & Co., Inc., P.R.). Dec. 20, 1939, No. 32557. [Class 82 (i)] A refractory alloy consists of 0.1-35 per cent. of uranium and the remainder tungsten with or without molybdenum or rhenium or both, and with or without up to 2.5 per cent. of carbon, boron, or silicon, or small amounts of iron, cobalt, nickel, tantalum, niobium, and manganese. The alloys may be made by pressing mixtures of the powders, and may be used for electric contacts, or as the refractory base of alloys including one or more of the metals copper, silver, gold, platinum, and palladium.
Patent GB-1051717-A (GB)
Title: a diagnostic radiology apparatus
IPC: H05G1/36
Filed: 1963-08-16
Abstract: 1,051,717. X-ray systems. SIEMENS-REINIGER-WERKE A.G. Aug. 16, 1963 [Aug. 17, 1962], No. 32596/63. Heading H2H. An X-ray system has a synchronous motor-driven timer 28-30, which at determined times reduces the X- ray filament current and voltage to follow approximately the tube load diagram by a sectional switch 31-33, the lower current and voltage ranges being adjustable. At a determined exposure an automatic device 35 cuts-off the tube supply and stops the motor. Alternatively a milliampere-second relay 39 may perform the same function. A circuit (not shown) returns the timer to its starting position. A switch 40-43 enables exposures to be made at a fixed voltage and filament currentsetting.
Patent GB-415371-A (GB)
Title: Improvements in or relating to the manufacture of screws
IPC: B21H3/00
Filed: 1932-11-18
Abstract: 415,371. Screwing. BAUER & SCHAURTE RHEINISCHE SCHRAUBENUND MUTTERNFABRIK AKT.-GES., 24, Furtherstrasse, Neuss, Germany.-(Assignees of Reinhardt, B. ; 42, Bouchestrasse, Berlin.) Nov. 18, 1932, No. 32677. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 20, 1933]. [Class 83 (iii).] Screw threads are formed by first cutting a thread of greater dimensions than the thread finally to be produced, and then completing the profiling of the thread by cold rolling. The metal may be heat treated &c. between the preliminary cutting and the final rolling operations.
Patent GB-1141609-A (GB)
Title: Hoist mechanisms
Inventor: SHAW MICHAEL KEVIN
IPC: G21C19/02
Filed: 1965-07-30
Abstract: 1,141,609. Hoist pulley arrangements. ENGLISH ELECTRIC CO. Ltd. 29 July, 1966 [30 July, 1965], No. 32694/65. Heading B8B. [Also in Divisions F2 and G6] A hoist mechanism for a neutron flux detector 13 is mounted in a shield plug 10 of a nuclear reactor and comprises a pair of parallel chains 14 supporting the detector 13 and adapted to carry electrical cables 45 extending between the detector 13 and a stationary point on the mechanism casing, to which the remote ends of the chains 14 are secured. The chains 14 pass around a double sprocket 15 mounted in a stirrup 30 which is raised and lowered by a chain 33. The latter passes over the sprocket of a winding mechanism (not shown) in the plug 10, and extends downwardly into a channel 38 in the mechanism casing where its end is attached to a balance weight. Overwind spring assemblies 60, 61 are provided to be engaged by conical heads adjacent both ends of the chain 33. A shock absorber is provided at the bottom of the stirrup travel path. The two chains 14 are linked together at intervals by spacer frames providing a channel for each of the cables 45, which extend through a passage 46 in the plug 10 from the said stationary point to a connector at the top of the plug. The detector 13 is provided with a recess 13A to receive a locking cam, in the upper position of the detector. The mechanism may be applied in mine winding gear, marine cable work or well drilling operations.
Patent GB-1310798-A (GB)
Title: Sink unit
IPC: E03C1/18
Filed: 1971-07-13
Abstract: 1310798 Sink units H BLANC [trading as BLANC & CO] 13 July 1971 [25 July 1970] 32729/71 Heading A4N A sink unit comprises a sink 10 and a draining board having a surface 14 which is horizontal and from which drained water is passed into the sink by parallel troughs 20 whose depth increases towards the sink. The surface 14 may be flush with the periphery of the sink unit or flush with the periphery of the unit except where a rear flange 16 projects upwardly. A horizontal trough 12 may be provided around the sink 10 and may be flush with the lowest parts of troughs 20. The sink and draining board may be integrally formed by pressing from stainless steel sheet and the sink unit may be supported on a wooden frame (18), Figs. 2 and 3 (not shown). The unit may incorporate two sinks.
Patent GB-421302-A (GB)
Title: A combined casing and press for tennis and other rackets
IPC: A63B60/44
Filed: 1933-11-23
Abstract: 421,302. Racket-presses. LEISNER, R. W., Vesteraat, Voksenlia, Oslo, Norway. Nov. 23, 1933, No. 32736. Convention date, May 18. Addition to 382,092. [Class 132 (ii)] The casing members described in the parent Specification are replaced by horseshoe-shaped frame members 1, 2 reinforced by spiders 4, and combined with a protective casing 5, for example, of impregnated fabric. The casing 5 is closed by a sliding-clasp fastener 6, and is independent of, or connected to one of the frame members 1, 2. The elastic pressure member of the parent Specification is replaced by a horseshoe-shaped element 8, Fig. 4, resiliently mounted by springs 9 on the member 2, or by a rubber strip mounted on member 2. The members 1, 2 are pivoted at 3, and clamped together at 7 by lever mechanisms shown in Figs. 4, 5 respectively.
Patent GB-1093825-A (GB)
Title: Improvements in or relating to tyres for vehicles
Inventor: DOYLE GEORGE MITCHELL
IPC: C08L71/02
Filed: 1963-08-19
Abstract: A tyre tread and/or casing comprises a vulcanized composition of a polymer of propylene oxide with or without further unsaturated copolymerizable compounds, in which the polymer contains at least 90 mole per cent of groups derived from propylene oxide.  The copolymerizable compound may be allyl glycidyl ether, cinnamoyl glycidyl ether, crotyl glycidyl ether, butadiene monoxide, cyclopentadiene monoxide, butadiene, 1:4-hexadiene, dicyclopentadiene and cyclooctadiene.  The polymer of propylene oxide alone is vulcanized with sulphur and a peroxide, and that of propylene oxide and an unsaturated compound with sulphur and an organic accelerator. Other saturated or unsaturated organic oxides may also be present in the polymer. The composition may contain fillers such as carbon blacks, silicates, clays, silicas, whitings, antioxidants and antiozonants e.g. amines, derivatives of thiourea, quinoline and hydroquinone, phenols and phenolic derivatives, phosphites, thiocarbamates, and the products of the reaction between amines and ketones.  The polymer may be extended or oil, e.g. hydrocarbon or ester-type oils.  Other blends of natural and/or synthetic rubbers may be included in the composition.
Patent GB-537494-A (GB)
Title: Improvements in or relating to roofs
IPC: E04B7/00
Filed: 1939-12-23
Abstract: 537,494. Roofs. JOHNSON & CO., Ltd., J. B., and SCOTT, J. Dec. 23, 1939, No. 32822. Drawings to Specification. [Class 20 (iv)] A roof comprises stiffened woven metal or expanded metal in the form of a sheet attached to and supported by the roof purlins and coated internally and externally with concrete or plaster, the external and internal coatings bonding together through the interstices of the metal, the said coatings being relatively thin and the external coating covered by waterproofing material. The purlins may be spaced up to four feet apart. Expanded metal known under the Registered Trade Marks "Hy Rib" and "Ribmet" is suitable. For moderate sized buildings the roof may be two inches thick. At least a substantial part of the aggregate of the external coating will not pass through the mesh of the expanded or woven metal. Two parts fine granite chippings may be mixed with one part each of cement and sand. A second external layer may comprise 2¢ parts sand to one of cement. The interior coating may comprise 1 part lime, 2 parts sand with 10 per cent. cement, with 4¢ lb. Cow Hair to one cubic yard of material. The cement may be that known under the Registered Trade Mark " Ferrocrete." Overlapping layers of waterproof felt may be attached by a suitable cement.
Patent GB-449012-A (GB)
Title: New anthraquinone dyestuffs
IPC: C09B1/34
Filed: 1934-11-14
Abstract: Anthraquinone dyes are prepared by reacting a leuco quinizarin (or a mixture of quinizarin and the corresponding leuco quinizarin) or a 1.4-dihalogenanthraquinone with a primary arylamine of the benzene series carrying as nuclear substituent an alkoxy group having 3--9 carbon atoms, either starting-material carrying certain substituents, if desired; and, if necessary, sulphonating.  Substituents which may be present are methyl, chloro, bromo, hydroxy, amino or sulpho groups.  Interaction may be effected in a diluent, and boric acid, or an acid-binding agent and copper catalyst may be present; sulphuric acid, chlorsulphonic acid or oleum may be used for sulphonation.  The anilines used as starting-materials may be made by reacting a potassium nitrophenate with an alkyl bromide and then reducing.  In examples: (1) leuco quinizarin is condensed with p-butoxyaniline in presence of boric acid and the product sulphonated with sulphuric acid and oleum; wool may be dyed from a boiling bath containing this dye and cetyl sodium sulphate; (2) leuco quinizarin is similarly condensed with p-isoamyloxyaniline and p-octyloxyaniline and sulphonated; (3) leuco-1.4.5-trihydroxyanthraquinone is similarly condensed with p-butyloxyaniline, p-isoamyloxyaniline and p-heptyloxyaniline and the products sulphonated; (4) 1.4.5.8-tetrachloranthraquinone is condensed with p-butyloxyaniline and then sulphonated.  The products dye animal fibres green shades fast to washing and milling and these shades need no after-chroming. Specifications 430,160 and 449,011 are referred to.
Patent GB-511114-A (GB)
Title: Manufacture of monoazo dyestuffs
IPC: C09B29/00
Filed: 1938-11-11
Abstract: 511,114. Dyes. GEIGY AKT.-GES., J. R. Nov. 11, 1938, No. 32858. Convention date, Nov. 13, 1937. [Class 2(iii)] Dyes are made by coupling diazotised o- and p-aminophenol alkyl ethers, whereof the alkyl radicals contain at least eight carbon atoms, with components containing at least one sulphonic group. Diazo and azo components may be substituted, e.g. by halogen or alkyl. In examples, (1) o-aminophenol decyl ether is diazotised and coupled with N-benzoyl H acid (blue-red shades on wool or silk) ; (2) o-aminophenol octyl ether is diazotized and coupled with 1(2<1>.5<1> - dichloro - 4<1> - sulphophenyl) - 3 - methyl-5-pyrazolone (yellow shades on wool or silk) ; (3) p-aminophenol octodecyl ether is diazotised and coupled with 1-hydroxynaphthalene-3,6-disulphonic acid (red shades on wool or silk). The o- and p-aminophenol alkyl 'ethers are made by treating o- and p-nitrophenol alkali salts with halides of higher alcohols, followed by reduction. Specification 394,343 is referred to.
Patent GB-1458780-A (GB)
Title: Pressure-sensitive reusable transfer elements and process for making same
IPC: B41M5/10
Filed: 1975-08-06
Abstract: 1458780 Pressure-senstive transfer element COLUMBIA RIBBON & CARBON MFG CO Inc 6 Aug 1975 [31 Oct 1974] 32935/75 Heading D2B A pressure-sensitive transfer element comprises a flexible support having thereon a bonding layer comprising a mixture of 20- 60% by wt. of a water-soluble film-forming binder and from 80-40% by wt. of a waterinsoluble film-forming binder, and a volatile vehicle-applied microporous ink layer comprising a film-forming binder material adhered to the bonding layer. The water-soluble binder may be polyethylene oxide, polyvinyl alcohol, polyvinyl pyrrolidone, methyl cellulose, ethyl hydroxyethyl cellulose, oxidised starch or casein, or a mixture thereof. The water-insoluble binder may be polyvinyl acetate, an acrylic polymer, polyvinylidene chloride, polystyrene, or a butadiene-styrene copolymer. The bonding layer may include an emulsifying or wetting agent and a pigment or dye. The support may be a plastics film e.g. of polyethylene terephthalate, polypropylene, chlorinated rubber, or cellulose acetate. The microporous ink layer may be derived from a suitable waterbased composition e.g. of the type described in Specification 1164027, or from an organic solvent-based composition e.g. of the type described in Specifications 941549 and 1155933.
Patent GB-316069-A (GB)
Title: An improved construction and method of mounting antifriction rollers
IPC: B60J7/02
Filed: 1928-11-12
Abstract: 316,069. Barnes, H. N. Nov. 12, 1928. Castors. - An antifriction roller suitable for castors, to obviate jarring or chattering consists of a metal bush 2 with a cvlindrical sleeve 6 of fibre or hemp webbing on which a grooved wheel 7 fitted with a rubber tyre 8 rotates. End washers 5, 9 of a similar material or of soft metal are threaded on a screw or similar pin 4 connecting the roller to the frame.
Patent GB-409804-A (GB)
Title: Improvements in or relating to vices
IPC: B25B1/12
Filed: 1932-11-23
Abstract: 409,804. Vices. HAMPTON, Ltd., C. & J., and HAMPTON, C. W., Record Works, Ouse Road, Sheffield. Nov. 23, 1932, No. 33070. [Class 61 (ii).] A woodworkers' vice, in which the fixed jaw 3 comprises a plate adapted to be let into the edge of a bench 4 and the operating screw 11 engages a half-nut 6 in a housing 5 carried by the fixed jaw, is provided with a cover &c. 16 entirely closing the housing 5 and supported above the screw 11 in a recessed portion of the nut housing opening or on internal lugs &c. inside the housing. A screw 20 secures one edge of the cover 16 in a recess in the rear wall 7 of the housing, lugs 17 support its sides and a flange 18 on the jaw 3 engages its remaining edge, a boss 19 limiting downward movement of the cover. A recess may replace the flange 18 and boss 19. Specification 292,381, [Class 61 (ii)], is referred to.